<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryForm" size="small" :inline="true" v-show="showSearch" label-width="68px">
      <el-form-item label="图片路径" prop="url">
        <el-input
            v-model="queryParams.url"
            placeholder="请输入图片路径"
            clearable
            @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="封面图名称" prop="coverName">
        <el-input
            v-model="queryParams.coverName"
            placeholder="请输入封面图名称"
            clearable
            @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
            type="primary"
            plain
            icon="el-icon-plus"
            size="mini"
            @click="handleAdd"
            v-hasPermi="['system:image:add']"
        >新增</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
            type="success"
            plain
            icon="el-icon-edit"
            size="mini"
            :disabled="single"
            @click="handleUpdate"
            v-hasPermi="['system:image:edit']"
        >修改</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
            type="danger"
            plain
            icon="el-icon-delete"
            size="mini"
            :disabled="multiple"
            @click="handleDelete"
            v-hasPermi="['system:image:remove']"
        >删除</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
            type="warning"
            plain
            icon="el-icon-download"
            size="mini"
            @click="handleExport"
            v-hasPermi="['system:image:export']"
        >导出</el-button>
      </el-col>
      <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table v-loading="loading" :data="imageList" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center" />
      <el-table-column label="id" align="center" prop="id" />
      <el-table-column label="图片路径" align="center" prop="url">
        <template #default="scope">
          <img class="cover-image" :src="scope.row.url"/>
        </template>
      </el-table-column>
      <el-table-column label="封面图名称" align="center" prop="coverName" />
      <el-table-column label="图片描述" align="center" prop="imageDesc" />
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template #default="scope">
          <el-button
              size="mini"
              type="text"
              icon="el-icon-edit"
              @click="handleUpdate(scope.row)"
              v-hasPermi="['system:image:edit']"
          >修改</el-button>
          <el-button
              size="mini"
              type="text"
              icon="el-icon-delete"
              @click="handleDelete(scope.row)"
              v-hasPermi="['system:image:remove']"
          >删除</el-button>
        </template>
      </el-table-column>
    </el-table>

    <pagination
        v-show="total>0"
        :total="total"
        :page.sync="queryParams.pageNum"
        :limit.sync="queryParams.pageSize"
        @pagination="getList"
    />

    <!-- 添加或修改【请填写功能名称】对话框 -->
    <el-dialog :title="title" v-model="open" width="500px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="80px">
        <el-form-item label="图片路径" prop="url">
          <el-upload
              :class="{ hide: hideUpload }"
              :auto-upload="false"
              :http-request="httpRequest"
              action="#"
              :limit="1"
              :file-list="fileList"
              :on-exceed="uploadOverrun"
              :on-success="handleGalleryUrl"
              :on-remove="handleRemove"
              :on-change="uploadChange"
              multiple
              accept=".jpg,.jpeg,.png,.gif"
              list-type="picture-card"
          >
            <el-icon :size="20" color="skyblue">
              <Plus />
            </el-icon>
          </el-upload>
        </el-form-item>
        <el-form-item label="封面图名称" prop="coverName">
          <el-input v-model="form.coverName" placeholder="请输入封面图名称" />
        </el-form-item>
        <el-form-item label="图片描述" prop="imageDesc">
          <el-input v-model="form.imageDesc" type="textarea" placeholder="请输入内容" />
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import { listImage, getImage, delImage, addImage, updateImage,uploadCoverImage  } from "@/api/system/image";

export default {
  name: "Image",
  data() {
    return {
      // 遮罩层
      loading: true,
      // 选中数组
      ids: [],
      // 非单个禁用
      single: true,
      // 非多个禁用
      multiple: true,
      // 显示搜索条件
      showSearch: true,
      // 总条数
      total: 0,
      // 【请填写功能名称】表格数据
      imageList: [],
      // 弹出层标题
      title: "",
      // 是否显示弹出层
      open: false,
      // 查询参数
      queryParams: {
        pageNum: 1,
        pageSize: 10,
        url: null,
        coverName: null,
        imageDesc: null
      },
      // 表单参数
      form: {},
      // 表单校验
      rules: {
      },
      fileList: [],
      hideUpload: false,
    };
  },

  computed: {
    hideUpload(){
      return this.fileList.length >=1
    }
  },
  created() {
    this.getList();
  },
  methods: {
    /** 查询【请填写功能名称】列表 */
    getList() {
      this.loading = true;
      listImage(this.queryParams).then(response => {
        this.imageList = response.rows;
        this.total = response.total;
        this.loading = false;
      });
    },
    // 取消按钮
    cancel() {
      this.open = false;
      this.reset();
    },
    // 表单重置
    reset() {
      this.fileList = []
      this.form = {
        id: null,
        createTime: null,
        url: null,
        coverName: null,
        imageDesc: null
      };
      this.resetForm("form");
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.queryParams.pageNum = 1;
      this.getList();
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.resetForm("queryForm");
      this.handleQuery();
    },
    // 多选框选中数据
    handleSelectionChange(selection) {
      this.ids = selection.map(item => item.id)
      this.single = selection.length!==1
      this.multiple = !selection.length
    },
    /** 新增按钮操作 */
    handleAdd() {
      this.reset();
      this.open = true;
      this.title = "添加【请填写功能名称】";
    },
    /** 修改按钮操作 */
    handleUpdate(row) {
      this.reset();
      const id = row.id || this.ids
      getImage(id).then(response => {
        this.form = response.data;
        this.open = true;
        this.fileList = []
        if(this.form.url){
          this.fileList.push({url: this.form.url})
        }
        this.title = "修改【请填写功能名称】";
      });
    },



    //文件上传改变的
    uploadChange(file, fileList) {
      this.fileList = fileList
      this.hideUpload = fileList.length >= 1;
      // this.fileList.push(e.raw.File)
      // console.log(this.fileList)
      // console.log(e)
    },

    /** 提交按钮 */
    async submitForm() {
      console.log(this.fileList)
      if(this.fileList[0].raw){
        let formData = new FormData();
        formData.append('file', this.fileList[0].raw);
        let res = await  uploadCoverImage(formData)
        this.form.url = res.url
      }




      this.$refs["form"].validate(valid => {
        if (valid) {
          if (this.form.id != null) {
            updateImage(this.form).then(response => {
              this.$modal.msgSuccess("修改成功");
              this.open = false;
              this.getList();
            });
          } else {
            addImage(this.form).then(response => {
              this.$modal.msgSuccess("新增成功");
              this.open = false;
              this.getList();
            });
          }
        }
      });
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      const ids = row.id || this.ids;
      this.$modal.confirm('是否确认删除【请填写功能名称】编号为"' + ids + '"的数据项？').then(function() {
        return delImage(ids);
      }).then(() => {
        this.getList();
        this.$modal.msgSuccess("删除成功");
      }).catch(() => {});
    },
    /** 导出按钮操作 */
    handleExport() {
      this.download('system/image/export', {
        ...this.queryParams
      }, `image_${new Date().getTime()}.xlsx`)
    }
  }
};
</script>
<style>
.hide .el-upload--picture-card {
  display: none;
}

::v-deep .hide .el-upload--picture-card {
  display: none;
}

.cover-image{
  width: 8vw;
  height: 23vh;
  object-fit:cover;
}
</style>